<template>
  <div class="cart">
    <h4>全部商品</h4>
    <div class="cart-main">
      <div class="cart-th">
        <div class="cart-th1">全部</div>
        <div class="cart-th2">商品</div>
        <div class="cart-th3">单价（元）</div>
        <div class="cart-th4">数量</div>
        <div class="cart-th5">小计（元）</div>
        <div class="cart-th6">操作</div>
      </div>
      <div class="cart-body">
        <ul class="cart-list" v-for="(item, index) in cartList" :key="item.id">
          <li class="cart-list-con1">
            <input type="checkbox" name="chk_list" @change="handleCheck(index)" :checked="item.isChecked">
          </li>
          <li class="cart-list-con2">
            <img :src="item.imgUrl">
            <div class="item-msg">{{item.skuName}}</div>
          </li>
          <li class="cart-list-con3">
            <div class="item-txt">语音升级款</div>
          </li>
          <li class="cart-list-con4">
            <span class="price">{{item.skuPrice}}</span>
          </li>
          <li class="cart-list-con5">
            <el-input-number v-model="item.skuNum" size="small" :min="0" :max="10"></el-input-number>
          </li>
          <li class="cart-list-con6">
            <span class="sum">{{item.skuNum * item.skuPrice}}</span>
          </li>
          <li class="cart-list-con7">
            <el-button type="warning" icon="el-icon-star-off" circle></el-button>
            <el-button type="danger" icon="el-icon-delete" circle @click="deleteGood(item.skuId, index)"></el-button>
          </li>
        </ul>
      </div>
    </div>
    <div class="cart-tool">
      <div class="select-all">
        <input class="chooseAll" type="checkbox" :checked="allChecked" @change="allHandleC">
        <span @click="allHandleC">全选</span>
      </div>
      <div class="option">
        <a href="javadcript:void(0)">删除选中的商品</a>
        <a href="javadcript:void(0)">移到我的关注</a>
        <a href="javadcript:void(0)">清除下柜商品</a>
      </div>
      <div class="money-box">
        <div class="chosed">已选择{{selectGoodCount}}件商品</div>
        <div class="sumprice">
          <em>总价（不含运费） ：</em>
          <i class="summoney">{{allPrice}}</i>
        </div>
        <div class="sumbtn">
          <a class="sum-btn" @click="goTrade">结算</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import {mapState} from "vuex"
import { reqCheckedGood, reqDeleteCart } from '@/utils/api';

export default {
  name: 'ShopCart',
  data() {
    return {
      skuNum: 1,
    }
  },
  computed: {
    ...mapState({
      cartList:(state) => state.ModuleCart.cartList
    }),
    allChecked() {
      // every每个都是true才返回true
      return this.cartList.every(e => {
        return e.isChecked
      })
    },
    selectGoodCount() {
      let num = 0
      this.cartList.forEach(e => {
        if(e.isChecked) num++
      })
      return num
    },
    allPrice() {
      let price = 0
       this.cartList.forEach(e => {
        if(e.isChecked) price += e.cartPrice * e.skuNum
      })
      return price
    }
  },

  mounted() {
    this.$store.dispatch("getCartList")
  },

  methods: {
    allHandleC() {
      // 点击全选前判断全选的状态
      if(this.allChecked) return this.cartList.forEach(e => e.isChecked = false);
      this.cartList.forEach(e => e.isChecked = true);
    },
    // 获取列表的index
    handleCheck(index) {
      this.cartList[index].isChecked = !this.cartList[index].isChecked
    },
    // 删除商品
    async deleteGood(skuId) {
      let result = await reqDeleteCart(skuId)
      if(result.code == 200) {
        this.$store.dispatch("getCartList")
        this.$message({message: "删除成功", type: "success"})
      } else {
        this.$message({message: "删除失败", type: "error"})
      }
    }, 
    // 选中所购的商品去结算
    goTrade() {
      this.cartList.forEach(e => {
        // if(e.isChecked) {
          // let skuID = e.skuId
          reqCheckedGood(e.skuId, e.isChecked - 0).then((res) => {
            if(res.code == 200) {
              this.$router.push({path: "/trade"})
            }
          }).catch(err => {Promise.reject(new Error(err.message))})
        // }
      })
    }
  }
}
</script>

<style lang="less" scoped>
  .cart {
    width: 1200px;
    margin: 0 auto;
    font-size: 12px;

    h4 {
      margin: 9px 0;
      font-size: 14px;
      line-height: 21px;
      font-weight: bold;
    }

    .cart-main {
      .cart-th {
        background: #f5f5f5;
        border: 1px solid #ddd;
        padding: 10px;
        overflow: hidden;

        &>div {
          float: left;
        }

        .cart-th1 {
          width: 25%;

          input {
            vertical-align: middle;
          }

          span {
            vertical-align: middle;
          }
        }

        .cart-th2 {
          width: 25%;
        }

        .cart-th3,
        .cart-th4,
        .cart-th5,
        .cart-th6 {
          width: 12.5%;

        }
      }

      .cart-body {
        margin: 15px 0;
        border: 1px solid #ddd;

        .cart-list {
          padding: 10px;
          border-bottom: 1px solid #ddd;
          overflow: hidden;

          &>li {
            float: left;
          }

          .cart-list-con1 {
            width: 4.1667%;
          }

          .cart-list-con2 {
            width: 25%;

            img {
              width: 82px;
              height: 82px;
              float: left;
            }

            .item-msg {
              float: left;
              width: 150px;
              margin: 0 10px;
              line-height: 18px;
            }
          }

          .cart-list-con3 {
            width: 20.8333%;

            .item-txt {
              text-align: center;
              line-height: 90px;
            }
          }

          .cart-list-con4 {
            width: 7.5%;
            line-height: 90px;
          }

          .cart-list-con5 {
            width: 12.5%;
            line-height: 90px;

          }

          .cart-list-con6 {
            width: 12.5%;
            text-align: center;
            line-height: 90px;
            .sum {
              font-size: 16px;
              color: #e1251b;

            }
          }

          .cart-list-con7 {
            width: 12.5%;
            text-align: center;
            line-height: 90px;
          }
        }
      }
    }

    .cart-tool {
      overflow: hidden;
      border: 1px solid #ddd;
      line-height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;

      .select-all {
        padding: 10px;
        overflow: hidden;
        float: left;

        span {
          vertical-align: middle;
        }

        input {
          vertical-align: middle;
        }
      }

      .option {
        padding: 10px;
        overflow: hidden;
        flex: 1;

        a {
          float: left;
          padding: 0 10px;
          color: #666;
        }
      }

      .money-box {
        width: 400px;
        height: 52px;
        line-height: 52px;
        display: inline-block;
        display: flex;
        align-items: center;


        .chosed {
          line-height: 26px;
          padding: 0 10px;
        }

        .sumprice {
          width: 200px;
          line-height: 22px;
          padding: 0 10px;

          .summoney {
            color: #c81623;
            font-size: 16px;
          }
        }

        .sumbtn {

          a {
            display: block;
            position: relative;
            width: 96px;
            height: 52px;
            line-height: 52px;
            color: #fff;
            text-align: center;
            font-size: 18px;
            font-family: "Microsoft YaHei";
            background: #e1251b;
            overflow: hidden;
          }
        }
      }
    }
  }
</style>